== sanity test 398b: DIO and buffer IO race ============== 02:18:40 (1788848320) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.72004 s, 8.8 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179638: Tue Sep 8 02:20:45 2026 read: IOPS=14, BW=56.6KiB/s (57.9kB/s)(5992KiB/105892msec) clat (usec): min=41, max=778992, avg=38877.28, stdev=32152.96 lat (usec): min=42, max=778993, avg=38880.58, stdev=32153.87 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 10159], 10.00th=[ 14091], 20.00th=[ 19006], | 30.00th=[ 23725], 40.00th=[ 28181], 50.00th=[ 32637], 60.00th=[ 38536], | 70.00th=[ 45876], 80.00th=[ 55313], 90.00th=[ 69731], 95.00th=[ 83362], | 99.00th=[130548], 99.50th=[145753], 99.90th=[329253], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 7, max= 103, per=25.15%, avg=56.08, stdev=19.97, samples=209 iops : min= 1, max= 25, avg=13.43, stdev= 5.04, samples=209 write: IOPS=14, BW=59.5KiB/s (60.9kB/s)(6296KiB/105893msec); 0 zone resets clat (usec): min=826, max=229876, avg=30031.57, stdev=31567.24 lat (usec): min=827, max=229877, avg=30039.14, stdev=31566.23 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1663], 20.00th=[ 3392], | 30.00th=[ 6128], 40.00th=[ 13435], 50.00th=[ 21890], 60.00th=[ 28967], | 70.00th=[ 38536], 80.00th=[ 51119], 90.00th=[ 71828], 95.00th=[ 90702], | 99.00th=[139461], 99.50th=[158335], 99.90th=[198181], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 7, max= 158, per=25.40%, avg=59.19, stdev=20.98, samples=208 iops : min= 1, max= 39, avg=14.21, stdev= 5.30, samples=208 lat (usec) : 50=0.42%, 100=1.11%, 250=0.16%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=6.35%, 4=5.24%, 10=7.68%, 20=14.06%, 50=41.80% lat (msec) : 100=19.76%, 250=3.16%, 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.85%, ctx=6657, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179639: Tue Sep 8 02:20:45 2026 read: IOPS=13, BW=55.5KiB/s (56.9kB/s)(5940KiB/106991msec) clat (usec): min=46, max=358352, avg=39313.79, stdev=27035.84 lat (usec): min=47, max=358354, avg=39317.32, stdev=27036.95 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 10421], 10.00th=[ 14615], 20.00th=[ 19792], | 30.00th=[ 24511], 40.00th=[ 28443], 50.00th=[ 33817], 60.00th=[ 39060], | 70.00th=[ 45876], 80.00th=[ 55313], 90.00th=[ 70779], 95.00th=[ 84411], | 99.00th=[135267], 99.50th=[156238], 99.90th=[252707], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 5, max= 119, per=24.85%, avg=55.41, stdev=19.95, samples=210 iops : min= 1, max= 29, avg=13.26, stdev= 5.01, samples=210 write: IOPS=14, BW=59.3KiB/s (60.8kB/s)(6348KiB/106991msec); 0 zone resets clat (usec): min=978, max=737000, avg=30370.53, stdev=34089.88 lat (usec): min=980, max=737000, avg=30376.56, stdev=34096.44 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1647], 20.00th=[ 3359], | 30.00th=[ 7046], 40.00th=[ 15926], 50.00th=[ 22938], 60.00th=[ 30278], | 70.00th=[ 39584], 80.00th=[ 50594], 90.00th=[ 71828], 95.00th=[ 88605], | 99.00th=[129500], 99.50th=[143655], 99.90th=[177210], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 143, per=25.37%, avg=59.10, stdev=23.49, samples=210 iops : min= 1, max= 35, avg=14.19, stdev= 5.91, samples=210 lat (usec) : 50=0.13%, 100=1.37%, 250=0.10%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=6.45%, 4=5.31%, 10=6.09%, 20=13.35%, 50=43.82% lat (msec) : 100=20.48%, 250=2.64%, 500=0.07%, 750=0.03% cpu : usr=0.08%, sys=5.88%, ctx=6762, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179640: Tue Sep 8 02:20:45 2026 read: IOPS=14, BW=56.0KiB/s (58.4kB/s)(6028KiB/105768msec) clat (usec): min=37, max=780642, avg=38233.96, stdev=31072.78 lat (usec): min=37, max=780643, avg=38235.24, stdev=31072.74 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 7963], 10.00th=[ 13829], 20.00th=[ 19268], | 30.00th=[ 23462], 40.00th=[ 27657], 50.00th=[ 32637], 60.00th=[ 38536], | 70.00th=[ 45351], 80.00th=[ 53740], 90.00th=[ 68682], 95.00th=[ 82314], | 99.00th=[125305], 99.50th=[143655], 99.90th=[189793], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 5, max= 104, per=25.37%, avg=56.57, stdev=20.29, samples=209 iops : min= 1, max= 26, avg=13.56, stdev= 5.12, samples=209 write: IOPS=14, BW=59.2KiB/s (60.6kB/s)(6260KiB/105768msec); 0 zone resets clat (usec): min=962, max=237364, avg=30544.28, stdev=31065.93 lat (usec): min=963, max=237366, avg=30550.83, stdev=31063.59 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1237], 10.00th=[ 1827], 20.00th=[ 3392], | 30.00th=[ 6194], 40.00th=[ 14484], 50.00th=[ 23200], 60.00th=[ 30540], | 70.00th=[ 38536], 80.00th=[ 51643], 90.00th=[ 74974], 95.00th=[ 92799], | 99.00th=[133694], 99.50th=[145753], 99.90th=[179307], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 7, max= 120, per=25.17%, avg=58.66, stdev=21.18, samples=209 iops : min= 1, max= 30, avg=14.08, stdev= 5.33, samples=209 lat (usec) : 50=0.29%, 100=1.66%, 250=0.10%, 500=0.07%, 1000=0.13% lat (msec) : 2=5.89%, 4=5.89%, 10=7.13%, 20=13.28%, 50=42.94% lat (msec) : 100=19.56%, 250=3.03%, 1000=0.03% cpu : usr=0.07%, sys=5.75%, ctx=6588, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179641: Tue Sep 8 02:20:45 2026 read: IOPS=14, BW=56.3KiB/s (57.6kB/s)(6052KiB/107547msec) clat (usec): min=31, max=859643, avg=37833.44, stdev=31979.56 lat (usec): min=31, max=859644, avg=37839.46, stdev=31979.80 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 8291], 10.00th=[ 13829], 20.00th=[ 19268], | 30.00th=[ 23725], 40.00th=[ 28181], 50.00th=[ 32900], 60.00th=[ 38536], | 70.00th=[ 44827], 80.00th=[ 52691], 90.00th=[ 65274], 95.00th=[ 78119], | 99.00th=[125305], 99.50th=[143655], 99.90th=[221250], 99.95th=[859833], | 99.99th=[859833] bw ( KiB/s): min= 7, max= 110, per=24.96%, avg=55.67, stdev=19.67, samples=212 iops : min= 1, max= 27, avg=13.32, stdev= 4.96, samples=212 write: IOPS=14, BW=57.0KiB/s (59.4kB/s)(6236KiB/107547msec); 0 zone resets clat (usec): min=886, max=282366, avg=32028.94, stdev=32407.54 lat (usec): min=886, max=282367, avg=32034.70, stdev=32408.18 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1254], 10.00th=[ 1958], 20.00th=[ 4015], | 30.00th=[ 7635], 40.00th=[ 15664], 50.00th=[ 24773], 60.00th=[ 31327], | 70.00th=[ 41681], 80.00th=[ 54264], 90.00th=[ 74974], 95.00th=[ 92799], | 99.00th=[135267], 99.50th=[164627], 99.90th=[248513], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 7, max= 111, per=24.75%, avg=57.66, stdev=22.47, samples=211 iops : min= 1, max= 27, avg=13.82, stdev= 5.65, samples=211 lat (usec) : 50=0.33%, 100=1.40%, 250=0.26%, 500=0.07%, 1000=0.07% lat (msec) : 2=5.27%, 4=4.79%, 10=7.91%, 20=13.31%, 50=42.84% lat (msec) : 100=21.09%, 250=2.60%, 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.68%, ctx=6711, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=223KiB/s (229kB/s), 55.5KiB/s-56.0KiB/s (56.9kB/s-58.4kB/s), io=23.4MiB (24.6MB), run=105768-107547msec WRITE: bw=234KiB/s (239kB/s), 57.0KiB/s-59.5KiB/s (59.4kB/s-60.9kB/s), io=24.6MiB (25.7MB), run=105768-107547msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179642: Tue Sep 8 02:21:18 2026 read: IOPS=10, BW=42.7KiB/s (43.7kB/s)(5992KiB/140443msec) clat (msec): min=5, max=812, avg=37.35, stdev=41.17 lat (msec): min=5, max=812, avg=37.35, stdev=41.17 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 39], 80.00th=[ 55], 90.00th=[ 85], 95.00th=[ 112], | 99.00th=[ 188], 99.50th=[ 207], 99.90th=[ 292], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 167, per=25.19%, avg=42.83, stdev=29.60, samples=273 iops : min= 1, max= 41, avg=10.04, stdev= 7.42, samples=273 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(6296KiB/140443msec); 0 zone resets clat (msec): min=10, max=295, avg=53.51, stdev=37.59 lat (msec): min=10, max=295, avg=53.51, stdev=37.59 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 51], | 70.00th=[ 64], 80.00th=[ 81], 90.00th=[ 104], 95.00th=[ 127], | 99.00th=[ 180], 99.50th=[ 218], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 151, per=25.18%, avg=44.82, stdev=28.35, samples=274 iops : min= 1, max= 37, avg=10.54, stdev= 7.11, samples=274 lat (msec) : 10=4.65%, 20=21.16%, 50=42.38%, 100=22.85%, 250=8.66% lat (msec) : 500=0.26%, 1000=0.03% cpu : usr=0.07%, sys=1.96%, ctx=4854, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179643: Tue Sep 8 02:21:18 2026 read: IOPS=10, BW=42.4KiB/s (43.4kB/s)(5940KiB/140169msec) clat (msec): min=4, max=815, avg=35.30, stdev=37.86 lat (msec): min=4, max=815, avg=35.30, stdev=37.86 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 52], 90.00th=[ 79], 95.00th=[ 105], | 99.00th=[ 159], 99.50th=[ 188], 99.90th=[ 228], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 175, per=25.17%, avg=42.79, stdev=30.52, samples=271 iops : min= 1, max= 43, avg=10.04, stdev= 7.65, samples=271 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6348KiB/140169msec); 0 zone resets clat (msec): min=7, max=387, avg=55.06, stdev=39.66 lat (msec): min=7, max=387, avg=55.07, stdev=39.66 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 25], | 30.00th=[ 29], 40.00th=[ 35], 50.00th=[ 43], 60.00th=[ 53], | 70.00th=[ 66], 80.00th=[ 83], 90.00th=[ 108], 95.00th=[ 131], | 99.00th=[ 190], 99.50th=[ 218], 99.90th=[ 359], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 128, per=25.22%, avg=44.88, stdev=27.89, samples=276 iops : min= 1, max= 32, avg=10.56, stdev= 6.99, samples=276 lat (msec) : 10=5.44%, 20=21.03%, 50=41.83%, 100=22.17%, 250=9.41% lat (msec) : 500=0.10%, 1000=0.03% cpu : usr=0.06%, sys=2.03%, ctx=4805, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179644: Tue Sep 8 02:21:18 2026 read: IOPS=10, BW=42.0KiB/s (43.0kB/s)(6028KiB/140321msec) clat (msec): min=5, max=244, avg=36.10, stdev=33.45 lat (msec): min=5, max=244, avg=36.10, stdev=33.45 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 39], 80.00th=[ 52], 90.00th=[ 84], 95.00th=[ 106], | 99.00th=[ 161], 99.50th=[ 192], 99.90th=[ 230], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 7, max= 175, per=25.57%, avg=43.46, stdev=29.37, samples=271 iops : min= 1, max= 43, avg=10.20, stdev= 7.36, samples=271 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6260KiB/140321msec); 0 zone resets clat (msec): min=9, max=916, avg=54.73, stdev=44.58 lat (msec): min=9, max=916, avg=54.74, stdev=44.59 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 34], 50.00th=[ 42], 60.00th=[ 52], | 70.00th=[ 64], 80.00th=[ 81], 90.00th=[ 105], 95.00th=[ 130], | 99.00th=[ 186], 99.50th=[ 232], 99.90th=[ 380], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 159, per=24.96%, avg=44.44, stdev=29.25, samples=275 iops : min= 1, max= 39, avg=10.45, stdev= 7.34, samples=275 lat (msec) : 10=5.18%, 20=20.57%, 50=42.74%, 100=22.72%, 250=8.63% lat (msec) : 500=0.13%, 1000=0.03% cpu : usr=0.05%, sys=1.95%, ctx=4777, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179645: Tue Sep 8 02:21:18 2026 read: IOPS=10, BW=43.1KiB/s (44.1kB/s)(6052KiB/140457msec) clat (msec): min=4, max=312, avg=36.41, stdev=34.08 lat (msec): min=4, max=312, avg=36.41, stdev=34.08 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 55], 90.00th=[ 81], 95.00th=[ 108], | 99.00th=[ 169], 99.50th=[ 199], 99.90th=[ 279], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 198, per=25.72%, avg=43.72, stdev=30.29, samples=270 iops : min= 1, max= 49, avg=10.27, stdev= 7.60, samples=270 write: IOPS=11, BW=44.4KiB/s (45.5kB/s)(6236KiB/140457msec); 0 zone resets clat (msec): min=8, max=908, avg=54.59, stdev=44.76 lat (msec): min=8, max=908, avg=54.59, stdev=44.76 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 25], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 52], | 70.00th=[ 63], 80.00th=[ 79], 90.00th=[ 107], 95.00th=[ 129], | 99.00th=[ 197], 99.50th=[ 232], 99.90th=[ 355], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 159, per=24.82%, avg=44.18, stdev=27.56, samples=275 iops : min= 1, max= 39, avg=10.39, stdev= 6.90, samples=275 lat (msec) : 10=4.49%, 20=20.83%, 50=43.29%, 100=22.36%, 250=8.76% lat (msec) : 500=0.23%, 1000=0.03% cpu : usr=0.05%, sys=1.96%, ctx=4821, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=171KiB/s (175kB/s), 42.4KiB/s-43.1KiB/s (43.4kB/s-44.1kB/s), io=23.4MiB (24.6MB), run=140169-140457msec WRITE: bw=179KiB/s (183kB/s), 44.4KiB/s-45.3KiB/s (45.5kB/s-46.4kB/s), io=24.6MiB (25.7MB), run=140169-140457msec mix direct rw 16384 by fio with 4 jobs... mix buffer rw 16384 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179683: Tue Sep 8 02:21:55 2026 read: IOPS=13, BW=208KiB/s (213kB/s)(5920KiB/28456msec) clat (usec): min=36, max=158746, avg=39752.98, stdev=26494.55 lat (usec): min=37, max=158747, avg=39754.03, stdev=26494.59 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 90], 20.00th=[ 21103], | 30.00th=[ 26870], 40.00th=[ 31589], 50.00th=[ 36963], 60.00th=[ 42730], | 70.00th=[ 48497], 80.00th=[ 54789], 90.00th=[ 70779], 95.00th=[ 87557], | 99.00th=[129500], 99.50th=[154141], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 64, max= 444, per=24.72%, avg=207.93, stdev=72.76, samples=56 iops : min= 4, max= 27, avg=12.27, stdev= 4.52, samples=56 write: IOPS=13, BW=224KiB/s (229kB/s)(6368KiB/28456msec); 0 zone resets clat (usec): min=1499, max=199829, avg=33929.41, stdev=31587.43 lat (usec): min=1501, max=199831, avg=33931.56, stdev=31587.46 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2114], 10.00th=[ 3392], 20.00th=[ 5866], | 30.00th=[ 10290], 40.00th=[ 16712], 50.00th=[ 25560], 60.00th=[ 31851], | 70.00th=[ 42730], 80.00th=[ 61080], 90.00th=[ 81265], 95.00th=[ 95945], | 99.00th=[130548], 99.50th=[137364], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 63, max= 412, per=25.35%, avg=224.30, stdev=80.41, samples=56 iops : min= 3, max= 25, avg=13.30, stdev= 5.08, samples=56 lat (usec) : 50=0.78%, 100=4.30%, 250=0.39%, 500=0.13% lat (msec) : 2=2.47%, 4=4.30%, 10=8.59%, 20=9.11%, 50=43.75% lat (msec) : 100=22.53%, 250=3.65% cpu : usr=0.07%, sys=6.46%, ctx=1700, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179684: Tue Sep 8 02:21:55 2026 read: IOPS=12, BW=208KiB/s (213kB/s)(5744KiB/27642msec) clat (usec): min=40, max=148037, avg=41393.23, stdev=26883.79 lat (usec): min=40, max=148038, avg=41396.70, stdev=26884.41 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 12256], 20.00th=[ 22152], | 30.00th=[ 27132], 40.00th=[ 31589], 50.00th=[ 37487], 60.00th=[ 43254], | 70.00th=[ 50070], 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 93848], | 99.00th=[127402], 99.50th=[145753], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 92, max= 375, per=24.67%, avg=207.46, stdev=70.39, samples=54 iops : min= 5, max= 23, avg=12.24, stdev= 4.51, samples=54 write: IOPS=14, BW=237KiB/s (242kB/s)(6544KiB/27642msec); 0 zone resets clat (usec): min=1430, max=193477, avg=31076.89, stdev=31649.91 lat (usec): min=1432, max=193479, avg=31080.03, stdev=31649.01 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2024], 10.00th=[ 3195], 20.00th=[ 5211], | 30.00th=[ 8979], 40.00th=[ 13566], 50.00th=[ 21365], 60.00th=[ 27657], | 70.00th=[ 37487], 80.00th=[ 52167], 90.00th=[ 74974], 95.00th=[ 92799], | 99.00th=[147850], 99.50th=[156238], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 31, max= 447, per=26.68%, avg=236.13, stdev=101.59, samples=54 iops : min= 1, max= 27, avg=14.06, stdev= 6.44, samples=54 lat (usec) : 50=0.39%, 100=3.52%, 250=0.39% lat (msec) : 2=2.60%, 4=4.95%, 10=10.16%, 20=11.07%, 50=41.54% lat (msec) : 100=21.74%, 250=3.65% cpu : usr=0.06%, sys=6.71%, ctx=1749, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179687: Tue Sep 8 02:21:55 2026 read: IOPS=13, BW=223KiB/s (228kB/s)(6256KiB/28100msec) clat (usec): min=37, max=203808, avg=39436.65, stdev=29138.40 lat (usec): min=37, max=203810, avg=39438.06, stdev=29138.11 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 59], 10.00th=[ 88], 20.00th=[ 18482], | 30.00th=[ 23987], 40.00th=[ 28443], 50.00th=[ 34341], 60.00th=[ 41157], | 70.00th=[ 49546], 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 86508], | 99.00th=[135267], 99.50th=[191890], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 64, max= 384, per=26.41%, avg=222.09, stdev=76.21, samples=55 iops : min= 4, max= 24, avg=13.16, stdev= 4.83, samples=55 write: IOPS=13, BW=215KiB/s (220kB/s)(6032KiB/28100msec); 0 zone resets clat (usec): min=1643, max=182391, avg=33261.64, stdev=32554.90 lat (usec): min=1645, max=182394, avg=33263.71, stdev=32554.92 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2212], 10.00th=[ 3392], 20.00th=[ 6128], | 30.00th=[ 9896], 40.00th=[ 16712], 50.00th=[ 23725], 60.00th=[ 31851], | 70.00th=[ 42206], 80.00th=[ 54789], 90.00th=[ 74974], 95.00th=[ 99091], | 99.00th=[149947], 99.50th=[168821], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 31, max= 512, per=23.84%, avg=211.02, stdev=97.21, samples=55 iops : min= 1, max= 32, avg=12.47, stdev= 6.18, samples=55 lat (usec) : 50=0.26%, 100=5.21%, 250=0.91% lat (msec) : 2=2.08%, 4=4.69%, 10=8.33%, 20=12.50%, 50=39.06% lat (msec) : 100=23.05%, 250=3.91% cpu : usr=0.07%, sys=6.44%, ctx=1759, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179688: Tue Sep 8 02:21:55 2026 read: IOPS=13, BW=222KiB/s (227kB/s)(6032KiB/27222msec) clat (usec): min=38, max=156311, avg=37015.99, stdev=26202.93 lat (usec): min=40, max=156312, avg=37017.17, stdev=26202.88 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 86], 20.00th=[ 17171], | 30.00th=[ 22676], 40.00th=[ 29230], 50.00th=[ 34866], 60.00th=[ 40633], | 70.00th=[ 45876], 80.00th=[ 54264], 90.00th=[ 70779], 95.00th=[ 90702], | 99.00th=[117965], 99.50th=[123208], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 31, max= 415, per=26.20%, avg=220.38, stdev=85.73, samples=53 iops : min= 1, max= 25, avg=13.06, stdev= 5.38, samples=53 write: IOPS=14, BW=230KiB/s (235kB/s)(6256KiB/27222msec); 0 zone resets clat (usec): min=1414, max=163423, avg=33210.35, stdev=32551.40 lat (usec): min=1416, max=163425, avg=33212.45, stdev=32551.33 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 2008], 10.00th=[ 2802], 20.00th=[ 4490], | 30.00th=[ 8029], 40.00th=[ 16188], 50.00th=[ 23200], 60.00th=[ 33162], | 70.00th=[ 42206], 80.00th=[ 57410], 90.00th=[ 80217], 95.00th=[ 98042], | 99.00th=[143655], 99.50th=[160433], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 95, max= 473, per=25.79%, avg=228.28, stdev=74.59, samples=53 iops : min= 5, max= 29, avg=13.55, stdev= 4.74, samples=53 lat (usec) : 50=0.65%, 100=4.95%, 250=0.91%, 500=0.26%, 1000=0.13% lat (msec) : 2=2.60%, 4=6.12%, 10=9.11%, 20=9.90%, 50=40.49% lat (msec) : 100=20.96%, 250=3.91% cpu : usr=0.06%, sys=6.43%, ctx=1665, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=842KiB/s (862kB/s), 208KiB/s-223KiB/s (213kB/s-228kB/s), io=23.4MiB (24.5MB), run=27222-28456msec WRITE: bw=886KiB/s (907kB/s), 215KiB/s-237KiB/s (220kB/s-242kB/s), io=24.6MiB (25.8MB), run=27222-28456msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179682: Tue Sep 8 02:22:06 2026 read: IOPS=9, BW=151KiB/s (155kB/s)(5920KiB/39152msec) clat (msec): min=6, max=245, avg=40.59, stdev=32.35 lat (msec): min=6, max=245, avg=40.59, stdev=32.35 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 47], 80.00th=[ 59], 90.00th=[ 84], 95.00th=[ 109], | 99.00th=[ 148], 99.50th=[ 192], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 31, max= 415, per=24.81%, avg=149.84, stdev=88.82, samples=76 iops : min= 1, max= 25, avg= 8.58, stdev= 5.62, samples=76 write: IOPS=10, BW=163KiB/s (167kB/s)(6368KiB/39152msec); 0 zone resets clat (msec): min=14, max=300, avg=60.40, stdev=37.53 lat (msec): min=14, max=300, avg=60.41, stdev=37.53 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 51], 60.00th=[ 58], | 70.00th=[ 70], 80.00th=[ 82], 90.00th=[ 109], 95.00th=[ 138], | 99.00th=[ 182], 99.50th=[ 224], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 413, per=25.28%, avg=160.79, stdev=81.88, samples=77 iops : min= 1, max= 25, avg= 9.26, stdev= 5.21, samples=77 lat (msec) : 10=1.43%, 20=12.63%, 50=46.35%, 100=30.21%, 250=9.24% lat (msec) : 500=0.13% cpu : usr=0.06%, sys=1.94%, ctx=1162, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179685: Tue Sep 8 02:22:06 2026 read: IOPS=9, BW=145KiB/s (149kB/s)(5744KiB/39598msec) clat (msec): min=6, max=250, avg=41.85, stdev=35.95 lat (msec): min=6, max=250, avg=41.86, stdev=35.95 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 59], 90.00th=[ 94], 95.00th=[ 122], | 99.00th=[ 163], 99.50th=[ 215], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 352, per=23.96%, avg=144.70, stdev=87.33, samples=77 iops : min= 1, max= 22, avg= 8.25, stdev= 5.60, samples=77 write: IOPS=10, BW=165KiB/s (169kB/s)(6544KiB/39598msec); 0 zone resets clat (msec): min=10, max=239, avg=59.46, stdev=38.52 lat (msec): min=10, max=239, avg=59.47, stdev=38.52 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 23], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 68], 80.00th=[ 89], 90.00th=[ 116], 95.00th=[ 140], | 99.00th=[ 178], 99.50th=[ 203], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 31, max= 479, per=25.86%, avg=164.47, stdev=93.39, samples=77 iops : min= 1, max= 29, avg= 9.49, stdev= 5.88, samples=77 lat (msec) : 10=2.08%, 20=14.58%, 50=47.40%, 100=24.35%, 250=11.46% lat (msec) : 500=0.13% cpu : usr=0.06%, sys=2.03%, ctx=1183, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179686: Tue Sep 8 02:22:06 2026 read: IOPS=9, BW=158KiB/s (162kB/s)(6256KiB/39527msec) clat (msec): min=7, max=229, avg=42.12, stdev=36.30 lat (msec): min=7, max=229, avg=42.13, stdev=36.30 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 61], 90.00th=[ 89], 95.00th=[ 122], | 99.00th=[ 186], 99.50th=[ 203], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 31, max= 604, per=26.54%, avg=160.30, stdev=107.33, samples=77 iops : min= 1, max= 37, avg= 9.23, stdev= 6.79, samples=77 write: IOPS=9, BW=153KiB/s (156kB/s)(6032KiB/39527msec); 0 zone resets clat (msec): min=14, max=225, avg=60.42, stdev=37.16 lat (msec): min=14, max=225, avg=60.43, stdev=37.16 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 44], 50.00th=[ 51], 60.00th=[ 60], | 70.00th=[ 70], 80.00th=[ 88], 90.00th=[ 116], 95.00th=[ 142], | 99.00th=[ 171], 99.50th=[ 192], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 31, max= 415, per=23.61%, avg=150.17, stdev=77.50, samples=78 iops : min= 1, max= 25, avg= 8.59, stdev= 4.93, samples=78 lat (msec) : 10=1.69%, 20=15.76%, 50=43.88%, 100=27.86%, 250=10.81% cpu : usr=0.05%, sys=2.08%, ctx=1192, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179689: Tue Sep 8 02:22:06 2026 read: IOPS=9, BW=154KiB/s (157kB/s)(6032KiB/39263msec) clat (msec): min=8, max=227, avg=42.20, stdev=34.16 lat (msec): min=8, max=227, avg=42.20, stdev=34.16 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 59], 90.00th=[ 91], 95.00th=[ 118], | 99.00th=[ 159], 99.50th=[ 222], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 31, max= 447, per=25.63%, avg=154.80, stdev=86.01, samples=75 iops : min= 1, max= 27, avg= 8.89, stdev= 5.44, samples=75 write: IOPS=9, BW=159KiB/s (163kB/s)(6256KiB/39263msec); 0 zone resets clat (msec): min=14, max=226, avg=59.19, stdev=36.09 lat (msec): min=14, max=226, avg=59.20, stdev=36.09 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 56], | 70.00th=[ 66], 80.00th=[ 85], 90.00th=[ 109], 95.00th=[ 138], | 99.00th=[ 186], 99.50th=[ 201], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 31, max= 445, per=25.02%, avg=159.11, stdev=85.85, samples=76 iops : min= 1, max= 27, avg= 9.16, stdev= 5.45, samples=76 lat (msec) : 10=0.91%, 20=13.02%, 50=48.31%, 100=28.13%, 250=9.64% cpu : usr=0.06%, sys=1.91%, ctx=1165, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=605KiB/s (619kB/s), 145KiB/s-158KiB/s (149kB/s-162kB/s), io=23.4MiB (24.5MB), run=39152-39598msec WRITE: bw=636KiB/s (652kB/s), 153KiB/s-165KiB/s (156kB/s-169kB/s), io=24.6MiB (25.8MB), run=39152-39598msec mix direct rw 1048576 by fio with 4 jobs... mix buffer rw 1048576 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179700: Tue Sep 8 02:22:17 2026 read: IOPS=2, BW=2069KiB/s (2118kB/s)(7168KiB/3465msec) clat (usec): min=772, max=314352, avg=153727.90, stdev=91930.73 lat (usec): min=773, max=314353, avg=153729.07, stdev=91930.60 clat percentiles (usec): | 1.00th=[ 775], 5.00th=[ 775], 10.00th=[ 775], 20.00th=[129500], | 30.00th=[135267], 40.00th=[135267], 50.00th=[158335], 60.00th=[164627], | 70.00th=[164627], 80.00th=[173016], 90.00th=[312476], 95.00th=[312476], | 99.00th=[312476], 99.50th=[312476], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 1973, max= 5545, per=72.00%, avg=3865.67, stdev=1795.53, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1478KiB/s (1513kB/s)(5120KiB/3465msec); 0 zone resets clat (msec): min=124, max=756, avg=469.65, stdev=292.80 lat (msec): min=124, max=756, avg=469.75, stdev=292.87 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 126], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1868, max= 3946, per=32.93%, avg=2475.25, stdev=983.99, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 1000=8.33% lat (msec) : 250=58.33%, 500=8.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=19.98%, ctx=438, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179701: Tue Sep 8 02:22:17 2026 read: IOPS=0, BW=537KiB/s (550kB/s)(2048KiB/3814msec) clat (msec): min=173, max=196, avg=184.96, stdev=16.60 lat (msec): min=173, max=196, avg=184.96, stdev=16.60 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 197], | 70.00th=[ 197], 80.00th=[ 197], 90.00th=[ 197], 95.00th=[ 197], | 99.00th=[ 197], 99.50th=[ 197], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 1868, max= 1980, per=35.84%, avg=1924.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2685KiB/s (2749kB/s)(10.0MiB/3814msec); 0 zone resets clat (msec): min=117, max=830, avg=332.84, stdev=214.45 lat (msec): min=118, max=830, avg=332.93, stdev=214.44 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 171], | 30.00th=[ 192], 40.00th=[ 194], 50.00th=[ 197], 60.00th=[ 321], | 70.00th=[ 401], 80.00th=[ 418], 90.00th=[ 485], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1939, max= 5605, per=47.07%, avg=3538.40, stdev=1571.83, samples=5 iops : min= 1, max= 5, avg= 2.80, stdev= 1.79, samples=5 lat (msec) : 250=58.33%, 500=33.33%, 1000=8.33% cpu : usr=0.00%, sys=24.84%, ctx=184, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179702: Tue Sep 8 02:22:17 2026 read: IOPS=2, BW=2637KiB/s (2700kB/s)(6144KiB/2330msec) clat (usec): min=500, max=287957, avg=101881.19, stdev=113518.77 lat (usec): min=501, max=287958, avg=101882.32, stdev=113518.71 clat percentiles (usec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 2409], | 30.00th=[ 2409], 40.00th=[ 39584], 50.00th=[ 39584], 60.00th=[102237], | 70.00th=[177210], 80.00th=[177210], 90.00th=[287310], 95.00th=[287310], | 99.00th=[287310], 99.50th=[287310], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 1935, max= 4079, per=50.05%, avg=2687.33, stdev=1206.54, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=2, BW=2637KiB/s (2700kB/s)(6144KiB/2330msec); 0 zone resets clat (msec): min=77, max=460, avg=271.96, stdev=156.50 lat (msec): min=77, max=460, avg=272.12, stdev=156.47 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 209], 50.00th=[ 209], 60.00th=[ 271], | 70.00th=[ 456], 80.00th=[ 456], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 1935, max= 4047, per=33.49%, avg=2517.25, stdev=1021.12, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 50=8.33%, 100=8.33%, 250=33.33%, 500=33.33% cpu : usr=0.13%, sys=27.57%, ctx=167, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179703: Tue Sep 8 02:22:17 2026 read: IOPS=1, BW=1865KiB/s (1909kB/s)(5120KiB/2746msec) clat (usec): min=625, max=256342, avg=103027.94, stdev=139221.94 lat (usec): min=626, max=256342, avg=103029.08, stdev=139221.86 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[ 627], | 30.00th=[ 1467], 40.00th=[ 1467], 50.00th=[ 1975], 60.00th=[ 1975], | 70.00th=[254804], 80.00th=[254804], 90.00th=[256902], 95.00th=[256902], | 99.00th=[256902], 99.50th=[256902], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 7742, max= 7742, per=100.00%, avg=7742.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2610KiB/s (2673kB/s)(7168KiB/2746msec); 0 zone resets clat (msec): min=130, max=726, avg=306.87, stdev=216.41 lat (msec): min=130, max=726, avg=307.07, stdev=216.32 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 178], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 194], 60.00th=[ 253], | 70.00th=[ 253], 80.00th=[ 477], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1896, max= 4096, per=39.93%, avg=3001.50, stdev=1254.13, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=16.67%, 250=33.33%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=24.01%, ctx=139, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5370KiB/s (5499kB/s), 537KiB/s-2637KiB/s (550kB/s-2700kB/s), io=20.0MiB (20.0MB), run=2330-3814msec WRITE: bw=7518KiB/s (7698kB/s), 1478KiB/s-2685KiB/s (1513kB/s-2749kB/s), io=28.0MiB (29.4MB), run=2330-3814msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179705: Tue Sep 8 02:22:19 2026 read: IOPS=1, BW=1946KiB/s (1992kB/s)(7168KiB/3684msec) clat (msec): min=68, max=732, avg=326.81, stdev=247.20 lat (msec): min=68, max=732, avg=326.81, stdev=247.20 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 157], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 222], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 592], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 2011, max= 5398, per=82.30%, avg=3832.00, stdev=1707.84, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1390KiB/s (1423kB/s)(5120KiB/3684msec); 0 zone resets clat (msec): min=90, max=195, avg=147.90, stdev=47.98 lat (msec): min=90, max=195, avg=148.00, stdev=47.99 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 90], | 30.00th=[ 105], 40.00th=[ 105], 50.00th=[ 163], 60.00th=[ 163], | 70.00th=[ 186], 80.00th=[ 186], 90.00th=[ 197], 95.00th=[ 197], | 99.00th=[ 197], 99.50th=[ 197], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 2011, max= 6131, per=62.45%, avg=4071.00, stdev=2913.28, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 100=16.67%, 250=58.33%, 500=8.33%, 750=16.67% cpu : usr=0.19%, sys=8.99%, ctx=116, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179706: Tue Sep 8 02:22:19 2026 read: IOPS=0, BW=600KiB/s (615kB/s)(2048KiB/3412msec) clat (msec): min=196, max=419, avg=308.14, stdev=157.78 lat (msec): min=196, max=419, avg=308.15, stdev=157.78 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 1444, max= 1950, per=36.45%, avg=1697.00, stdev=357.80, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=3001KiB/s (3073kB/s)(10.0MiB/3412msec); 0 zone resets clat (msec): min=69, max=801, avg=258.02, stdev=230.92 lat (msec): min=69, max=801, avg=258.11, stdev=230.91 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 105], | 30.00th=[ 114], 40.00th=[ 146], 50.00th=[ 167], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 271], 90.00th=[ 531], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1799, max= 6131, per=54.70%, avg=3566.20, stdev=2217.68, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 2.19, samples=5 lat (msec) : 100=8.33%, 250=58.33%, 500=16.67%, 750=8.33%, 1000=8.33% cpu : usr=0.15%, sys=7.94%, ctx=108, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179707: Tue Sep 8 02:22:19 2026 read: IOPS=1, BW=1593KiB/s (1632kB/s)(6144KiB/3856msec) clat (msec): min=128, max=369, avg=210.80, stdev=88.61 lat (msec): min=128, max=369, avg=210.81, stdev=88.61 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 161], 50.00th=[ 161], 60.00th=[ 194], | 70.00th=[ 253], 80.00th=[ 253], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 2011, max= 3900, per=53.57%, avg=2494.25, stdev=937.26, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1593KiB/s (1632kB/s)(6144KiB/3856msec); 0 zone resets clat (msec): min=192, max=783, avg=356.25, stdev=221.91 lat (msec): min=192, max=783, avg=356.41, stdev=221.90 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 355], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1950, max= 4047, per=44.51%, avg=2901.75, stdev=1079.66, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 250=58.33%, 500=33.33%, 1000=8.33% cpu : usr=0.03%, sys=6.74%, ctx=80, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179708: Tue Sep 8 02:22:19 2026 read: IOPS=1, BW=1164KiB/s (1192kB/s)(5120KiB/4398msec) clat (msec): min=68, max=449, avg=235.65, stdev=161.95 lat (msec): min=68, max=449, avg=235.65, stdev=161.95 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 68], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 178], 60.00th=[ 178], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 1917, max= 4055, per=57.38%, avg=2671.67, stdev=1199.66, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1630KiB/s (1669kB/s)(7168KiB/4398msec); 0 zone resets clat (msec): min=173, max=739, avg=423.12, stdev=176.99 lat (msec): min=173, max=739, avg=423.23, stdev=176.99 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 330], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 401], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 510], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1878, max= 4079, per=36.36%, avg=2370.20, stdev=956.74, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=16.67% cpu : usr=0.02%, sys=7.76%, ctx=112, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4657KiB/s (4768kB/s), 600KiB/s-1946KiB/s (615kB/s-1992kB/s), io=20.0MiB (20.0MB), run=3412-4398msec WRITE: bw=6519KiB/s (6676kB/s), 1390KiB/s-3001KiB/s (1423kB/s-3073kB/s), io=28.0MiB (29.4MB), run=3412-4398msec mix direct rw 4194304 by fio with 4 jobs... mix buffer rw 4194304 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179719: Tue Sep 8 02:22:37 2026 read: IOPS=0, BW=2855KiB/s (2924kB/s)(12.0MiB/4304msec) clat (msec): min=687, max=2125, avg=1434.08, stdev=720.75 lat (msec): min=687, max=2125, avg=1434.08, stdev=720.75 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 2123], 80.00th=[ 2123], 90.00th=[ 2123], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7816, max= 8078, per=100.00%, avg=7947.00, stdev=185.26, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.18%, ctx=57, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179720: Tue Sep 8 02:22:37 2026 read: IOPS=0, BW=803KiB/s (822kB/s)(4096KiB/5102msec) clat (nsec): min=1322.8M, max=1322.8M, avg=1322809355.00, stdev= 0.00 lat (nsec): min=1322.8M, max=1322.8M, avg=1322811405.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1318], 5.00th=[ 1318], 10.00th=[ 1318], 20.00th=[ 1318], | 30.00th=[ 1318], 40.00th=[ 1318], 50.00th=[ 1318], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7984, max= 7984, per=100.00%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1606KiB/s (1644kB/s)(8192KiB/5102msec); 0 zone resets clat (msec): min=1301, max=2473, avg=1887.33, stdev=828.99 lat (msec): min=1301, max=2473, avg=1887.67, stdev=828.97 clat percentiles (msec): | 1.00th=[ 1301], 5.00th=[ 1301], 10.00th=[ 1301], 20.00th=[ 1301], | 30.00th=[ 1301], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 2467], | 70.00th=[ 2467], 80.00th=[ 2467], 90.00th=[ 2467], 95.00th=[ 2467], | 99.00th=[ 2467], 99.50th=[ 2467], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7641, max= 7641, per=100.00%, avg=7641.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.06%, sys=2.16%, ctx=50, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179721: Tue Sep 8 02:22:37 2026 write: IOPS=0, BW=2670KiB/s (2734kB/s)(12.0MiB/4602msec); 0 zone resets clat (msec): min=897, max=2560, avg=1532.98, stdev=898.45 lat (msec): min=898, max=2561, avg=1533.36, stdev=898.40 clat percentiles (msec): | 1.00th=[ 902], 5.00th=[ 902], 10.00th=[ 902], 20.00th=[ 902], | 30.00th=[ 902], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 2567], 80.00th=[ 2567], 90.00th=[ 2567], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7049, max= 8175, per=100.00%, avg=7612.00, stdev=796.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.54%, ctx=60, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179722: Tue Sep 8 02:22:37 2026 write: IOPS=0, BW=3210KiB/s (3287kB/s)(12.0MiB/3828msec); 0 zone resets clat (msec): min=909, max=1464, avg=1274.80, stdev=316.85 lat (msec): min=909, max=1464, avg=1275.20, stdev=316.94 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7984, max= 8175, per=100.00%, avg=8079.50, stdev=135.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.27%, ctx=61, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3211KiB/s (3288kB/s), 803KiB/s-2855KiB/s (822kB/s-2924kB/s), io=16.0MiB (16.8MB), run=4304-5102msec WRITE: bw=6423KiB/s (6577kB/s), 1606KiB/s-3210KiB/s (1644kB/s-3287kB/s), io=32.0MiB (33.6MB), run=3828-5102msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179714: Tue Sep 8 02:22:37 2026 read: IOPS=0, BW=3293KiB/s (3373kB/s)(12.0MiB/3731msec) clat (msec): min=961, max=1548, avg=1235.19, stdev=295.20 lat (msec): min=961, max=1548, avg=1235.19, stdev=295.20 clat percentiles (msec): | 1.00th=[ 961], 5.00th=[ 961], 10.00th=[ 961], 20.00th=[ 961], | 30.00th=[ 961], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=9.73%, ctx=242, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179715: Tue Sep 8 02:22:37 2026 read: IOPS=0, BW=869KiB/s (889kB/s)(4096KiB/4716msec) clat (nsec): min=978050k, max=978050k, avg=978050172.00, stdev= 0.00 lat (nsec): min=978051k, max=978051k, avg=978051262.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 978], 5.00th=[ 978], 10.00th=[ 978], 20.00th=[ 978], | 30.00th=[ 978], 40.00th=[ 978], 50.00th=[ 978], 60.00th=[ 978], | 70.00th=[ 978], 80.00th=[ 978], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1737KiB/s (1779kB/s)(8192KiB/4716msec); 0 zone resets clat (msec): min=1388, max=2247, avg=1818.23, stdev=607.72 lat (msec): min=1389, max=2248, avg=1818.89, stdev=607.19 clat percentiles (msec): | 1.00th=[ 1385], 5.00th=[ 1385], 10.00th=[ 1385], 20.00th=[ 1385], | 30.00th=[ 1385], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 2232], | 70.00th=[ 2232], 80.00th=[ 2232], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.24%, ctx=112, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179716: Tue Sep 8 02:22:37 2026 write: IOPS=0, BW=2222KiB/s (2275kB/s)(12.0MiB/5531msec); 0 zone resets clat (msec): min=453, max=3230, avg=1827.43, stdev=1388.78 lat (msec): min=453, max=3230, avg=1828.78, stdev=1388.50 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 1804], 50.00th=[ 1804], 60.00th=[ 1804], | 70.00th=[ 3239], 80.00th=[ 3239], 90.00th=[ 3239], 95.00th=[ 3239], | 99.00th=[ 3239], 99.50th=[ 3239], 99.90th=[ 3239], 99.95th=[ 3239], | 99.99th=[ 3239] bw ( KiB/s): min= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.09%, sys=3.22%, ctx=92, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179717: Tue Sep 8 02:22:37 2026 write: IOPS=0, BW=3156KiB/s (3231kB/s)(12.0MiB/3894msec); 0 zone resets clat (msec): min=802, max=1969, avg=1269.69, stdev=616.91 lat (msec): min=803, max=1969, avg=1269.95, stdev=616.81 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 1972], 80.00th=[ 1972], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 8078, max= 8192, per=100.00%, avg=8135.00, stdev=80.61, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.24%, ctx=62, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3474KiB/s (3558kB/s), 869KiB/s-3293KiB/s (889kB/s-3373kB/s), io=16.0MiB (16.8MB), run=3731-4716msec WRITE: bw=5924KiB/s (6067kB/s), 1737KiB/s-3156KiB/s (1779kB/s-3231kB/s), io=32.0MiB (33.6MB), run=3894-5531msec